Initial Project Assessment of the Window 3 Interconnectors - decision

Decision
Publication date
Industry sector
Offshore Transmission Network
Transmission Network

Interconnectors are the physical links that connect our electricity system with those of other countries and territories, enabling cross-border trade of electricity. Ofgem’s cap and floor regime has been successful in attracting investment to increase interconnector capacity over the last decade. At the Initial Project Assessment (IPA) stage, Ofgem assesses the projects’ suitability for a cap and floor regime, and this document outlines our minded-to position on which interconnectors to grant a cap and floor in principle based on that assessment.

The third application window for the cap and floor regime ran from September 2022 to January 2023, and seven projects applied. We consulted on our minded-to position for these projects in March to May 2024.

The seven projects assessed are:

  • Aminth (1.4GW to Denmark)
  • AQUIND (2GW to France)
  • Cronos (1.4GW to Belgium)
  • LirIC (0.7GW to Northern Ireland)
  • MaresConnect (0.75GW to Republic of Ireland)
  • NU-Link (1.2GW to the Netherlands)
  • Tarchon (1.4GW to Germany)

We consider that MaresConnect, LirIC and Tarchon are likely to be in the interest of GB consumers, and therefore we have decided to grant these projects a cap and floor regime in principle.

We have conducted further analysis to address stakeholder feedback. The rationale, methodology and results of that analysis, are contained within the decision document.